Kevin Warsh, a nominee for U.S. Federal Reserve chair, disclosed crypto-related and private technology investments in a 69-page ethics filing submitted to the U.S. Office of Government Ethics ahead of a Senate confirmation hearing scheduled for April 21. Existing coverage of the filing says Warsh and his wife reported at least $192 million in assets, including indirect exposure to Solana, dYdX, Optimism, Polymarket, SpaceX, and stakes tied to more than 20 blockchain companies. The disclosures characterize the crypto-linked positions as venture-style, indirect holdings rather than direct ownership of tradable digital assets.